Title: Anomalous transports from holography

Speaker:  卜严严

          本科毕业于苏州大学物理系(2008)，博士毕业于中科院理论物理所(2013)。2013-2016在以色列本-古里安大学从事博士后研究，2016年11月就职于哈工大物理系。

Abstract: We revisit the transport properties induced by the chiral anomaly in a charged plasma holographically dual to anomalous U(1)_V*U(1)_A Maxwell theory in Schwarzschild-AdS_5. Off-shell constitutive relations for vector and axial currents are derived using various approximations. a) In a weak external field approximation, the constitutive relations have all-order derivatives resummed. We generalise the chiral magnetic and chiral separation effects. b) Nonlinear transport is studied assuming presence of constant background external fields.  c) For a static spatially-inhomogeneous external magnetic field, gradient corrections to CME/CSE are analytically evaluated up to third order in the derivative expansion. Some of the third order gradient corrections lead to an anomaly-induced negative B^2-correction to the diffusion constant. We also find non-linear in B modifications to the chiral magnetic wave (CMW).